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/**
* Copyright hogefuga ( http://wonderfl.net/user/hogefuga )
* MIT License ( http://www.opensource.org/licenses/mit-license.php )
* Downloaded from: http://wonderfl.net/c/fnqB
*/
package {
import flash.display.Bitmap;
import flash.display.BitmapData;
import flash.display.Sprite;
import flash.events.Event;
import flash.geom.ColorTransform;
[SWF(width = "465", height = "465", frameRate = "60")]
public class Main extends Sprite {
private var count:int = 0;
private var bmd:BitmapData;
private var ct:ColorTransform;
private var s:Sprite;
private var pmx:Number;
private var pmy:Number;
public function Main() {
if (stage) init();
else addEventListener(Event.ADDED_TO_STAGE, init);
}
private function init(e:Event = null):void {
removeEventListener(Event.ADDED_TO_STAGE, init);
bmd = new BitmapData(465, 465, false, 0);
ct = new ColorTransform(0.98, 0.98, 0.98);
s = new Sprite();
pmx = mouseX;
pmy = mouseY;
addChild(new Bitmap(bmd));
addEventListener(Event.ENTER_FRAME, loop);
}
private function loop(e:Event):void {
count++;
s.graphics.clear();
var d:Number = 0.5 * Math.sqrt((mouseX - pmx) * (mouseX - pmx) + (mouseY - pmy) * (mouseY - pmy));
var r:int = (Math.sin(count * 0.1) * 0.25 + 0.75) * 255;
var g:int = (Math.sin(count * 0.15) * 0.25 + 0.75) * 255;
var b:int = (Math.sin(count * 0.21) * 0.25 + 0.75) * 255;
s.graphics.beginFill(r << 16 | g << 8 | b, 1 / (1 + d * 0.02));
s.graphics.drawCircle((mouseX + pmx) * 0.5, (mouseY + pmy) * 0.5, d);
s.graphics.endFill();
pmx = mouseX;
pmy = mouseY;
bmd.draw(s);
bmd.colorTransform(bmd.rect, ct);
}
}
}